X系列管线钢的力学性能和显微组织比较  

Comparison of Mechanical Properties and Microscopic Structure of X Series Pipeline Steel

作　　者：李晓旭[1] 孙礼[1] 杜健[1] 张玉杰[1] 张宁[1] 

机构地区：[1]国家仪器仪表元器件质量监督检验中心,辽宁沈阳110043

出　　处：《管道技术与设备》2015年第5期48-51,共4页Pipeline Technique and Equipment

摘　　要：文中主要研究X系列管线钢力学性能和显微组织,通过全谱直读式光谱仪进行化学成分分析;通过金相显微镜对管线钢进行显微组织分析和晶粒度评级;通过拉伸试验、低温冲击试验及维氏硬度试验进行力学性能测试。经过分析得出结论:L415/X60的强度和硬度较高,塑性与韧性较好。The present study mainly investigated mechanical properties and microstructure of X series pipeline steel.The chemical composition was determined by spectrum analysis.The microscopic structure analysis and average grain size rate was determined by metallographic observation.The mechanical properties were investigated by tensile tests,cryogenic impact test and Vickers hardness test.Above all,L415/X60 presents high strength and hardness,optimal plasticity and toughness.

关 键 词：X系列管线钢 力学性能 显微组织 

分 类 号：TE8[石油与天然气工程—油气储运工程]